
High Quality Apertures for Medical Endoscopes The smallest aperture size we’re able to resolve is about 2um. Typical substrates inclue N-BK7, B270, D263, fused silica, and sapphire, but we can use other specified material as well. Typical aperture coating utilizes our proprietary black chrome: Very durable, low reflecting in visible with Rave <5% , OD […]